Archetecture to avoid content duplicate

[BigBlaze205]

Hi,

I have lots of duplicate stuff and I need a better site architecture.

http://www.furnacefilterscanada.com/

We are selling furnace filters.

All furnace filters are sold in 50 different sizes, each sizes comes in 3 different qualities, Bronze, Silver and Gold.

Total: 150 products.

Right now I have created many categories and subcategories for furnace filters sizes. When the client pickup is sizes, he will end-up to the products page with 3 different options, Bronze, Silver and Gold.

They can then compare the filter a select the one he wants to purchase.

The problem is, it is not possible to provide different content for each filters, Gold has a description, Silver has another one and also Bronze.

The only text that will change in the descriptions, is the filter size. This makes Duplicates text description. Not good when you what to index your site.

The positive things to 150 different products, is the page title. example 16x25x4 furnace filters. Those exacte tem get search in Google. A new site architecture with 3 categories, Gold, Silver and Bronze & 50 variables by products (filters sizes) might not be the best options, because no filter size will be index.

Can you please help me to find the best architecture in a SEO point of view?

Also what about the top navigation bar menu, what is the best options in using it? Right now it is use for Legal, Contact, Policy and I fill it is a wast, those page only get less then 1% clicks. It might be more convenient to use those for categories for example, what is your recommendations in a SEO point of view? Can I create a information page in the left navigation menu and includ all the standard page, like: Policy, Legal ... If I do, will I get penalize by Google?

Thank you for your help. We have puts lots of money in AdWords before, but now the next step is to come home organics. I'm using SEOmoz tools, read there new book, and I want increase traffic.

I just need your help.

Thank you,

BigBlaze

[AdamThompson]

Regarding putting your categories in the top navigation bar - I like that idea, but that's partly just my personal preference.

It seems to me from an SEO standpoint that you probably want to have individual pages for each size filter, so you can get ranked for size-specific keywords.

What could you do to provide useful content that is unique for each size? Like maybe list or show photos of popular models that require that size? Or indicate what type of model requires this size? Add interesting details such as air flow capacity?

[PathInteractive]

Rand has a great post that discusses proper site architecture to promote indexation.

http://www.seomoz.org/blog/diagrams-for-solving-crawl-priority-indexation-issues

Basically you want to stick to four levels. Home page > Category Pages > Subcategory Pages > Product Pages.

If you stick to that you should be able to have all pages indexed.  I would definitely add the categories to the top nav and you may also want to include a best sellers type of category.  That would allow you to push your best selling items closer to the home page and hopefully increased rankings as well.

[BigBlaze205]

link does not work.

[KeriMorgret]

The correct link is http://www.seomoz.org/blog/diagrams-for-solving-crawl-priority-indexation-issues. Are you still looking for advice on this issue, or did you come to a decision?